City of Frisco Engineering Standards

Engineering Standards
C. Temporary Stabilization
Portions of a site that have been disturbed, but where no work will occur for more than 21 days
shall be temporarily stabilized as soon as practicable, and no later than 14 days, except when
precluded by seasonal arid conditions, or prolonged drought.
Temporary stabilization shall consist of providing a protective cover, designed to reduce erosion
on disturbed areas. Temporary stabilization may be achieved using temporary seeding, soil
retention blankets, hydro-mulches and other techniques that cover 100 percent of the disturbed
areas until either final stabilization can be achieved or until further construction activities take
place.
Perimeter controls such as silt fence, vegetated buffer strips or other similar perimeter controls
are intended to act as controls when stabilization has not occurred. Perimeter controls may
remain in place during temporary stabilization.
D. Final Stabilization
Final stabilization consists of soil cover such as vegetation, geo-textiles, mulch, rock, or
placement of pavement. For stabilizing vegetated drainage ways, sod or seeded soil retention
blankets shall be used. Hydromulch will not be allowed in vegetated swales, channels or other
drainage ways.
The plan for final stabilization shall be coordinated with permanent controls in the SWMP and
with the landscaping plan, if applicable.
E. Notice of Intent (NOI)
If applicable, copies of the NOI shall be sent to the Engineering Services Department at least 2
days prior to construction.
F. TCEQ Site Notice
A signed copy of the Construction Site Notice shall be posted at the construction site in a location
where it is readily viewed by the general public during all construction activity.
G. Notice of Termination (NOT)
All parties that submitted a NOI shall submit a NOT within 30 days after final stabilization is
established. When the owner of a residential subdivision transfers ownership of individual lots to
builders before final stabilization is achieved, the SW3P shall include controls for each individual
lot in lieu of final stabilization. These controls shall consist of stabilization of the right-of-way
and placement of structural controls at the low point of each individual lot or equivalent measures
to retain soil on each lot during construction. Additionally, the builder must submit a valid NOI
before an NOT can be submitted by the owner.
Section 8 – Environmental Requirements May 2012 Page 8-5